899140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:148

約数の個数: 48

約数和(自身を含む): 2124864

約数和(自身を除く): 1225724

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 61, 67, 110, 122, 134, 220, 244, 268, 305, 335, 610, 670, 671, 737, 1220, 1340, 1342, 1474, 2684, 2948, 3355, 3685, 4087, 6710, 7370, 8174, 13420, 14740, 16348, 20435, 40870, 44957, 81740, 89914, 179828, 224785, 449570, 899140]

約数ペア:

[(1, 899140), (2, 449570), (4, 224785), (5, 179828), (10, 89914), (11, 81740), (20, 44957), (22, 40870), (44, 20435), (55, 16348), (61, 14740), (67, 13420), (110, 8174), (122, 7370), (134, 6710), (220, 4087), (244, 3685), (268, 3355), (305, 2948), (335, 2684), (610, 1474), (670, 1342), (671, 1340), (737, 1220)]